2.1 Introduction In architecture and building, in situ refers to construction which is carried out on the building site using raw materials. In-situ is most commonly a mixture of aggregate (known as builder’s mix) blended with portland cement and clean water, that is free of oils, acid and others. Portland cement is made from lime, […]
Chapter 2 Introduction According to C. Gray and R. Flanagan 1989 over ninety percent of construction activities are now subcontracted on the majority of contracts, which leaves the main contractor with a mere ten percent of the project to physically construct. These figures suggest that the success of a project largely depends on the performance […]
Moshi Urban Water Supply and Sanitation Authority is currently operating three boreholes which depend on electric power from TANESCO to operate the submersible water pumps. Moreover the Authority has plans to explore more boreholes to supplement the diminishing surface water abstraction capacity. The use of electric power from TANESCO has two major constraints to the […]
An energy efficient home combines state-of-the-art, energy-efficient construction and appliances with commercially available renewable energy systems to reward its owner with significantly reduced energy consumption. An energy efficient home like any other home, is connected to the utility grid, but overall it produces as much energy as it consumes. With net metering, the home’s electric […]